Brief introduction of plastic mica board material

Mica board is a rigid sheet-like insulating material made of peeled mica and a suitable adhesive and constrained by baking. It has plasticity within a certain temperature range. Suitable for insulating tubes, rings. Insulating parts with elevated temperature (such as traction motors and hoisting motors) or high-speed motors with low glue content.

Mica board is made of imported special high temperature resistant muscovite or phlogopite raw materials and adhesives. It has excellent electrical insulation and high temperature resistance. Especially suitable for steel, metallurgy and other occupations.

Power frequency furnace, intermediate frequency furnace, electric arc furnace and other high-temperature insulating materials, as well as asbestos substitutes, are specially designed for the use of electrothermal machinery, and have the following functional requirements: good insulation performance, high refractory temperature.

This is 1000 degrees Celsius. Low thermal conductivity, excellent electrical insulation, oil resistance, anti-corrosion, asbestos replacement, environmental protection, non-toxic, easy to process.

Application of plastic mica board

Mica board is suitable for 130 ℃ insulation pipes of various electrical appliances and electrical appliances. Rings and other parts is suitable for electrical and electrical insulation pipes at 130 ℃. 5250 silicon plastic mica plate ring and other parts are suitable for 180 ℃ insulation pipes of various electrical appliances and electrical appliances. Other parts 5150 silicone soft mica board is suitable for insulation of motor slots and fabrics at 180°C.

Production of mica boards

The center of mica board production is the preparation of epoxy composite adhesives. It should have a long memory. The mica board factory should be plasticized at a certain temperature and storage time, and the epoxy resin should be dissolved.

In solvent. Mix the above two solutions evenly and control at (160 + 2). The molding time is 4-6 rain, and the solid content is (60±2)%. Manufacturing equipment with side-ventilated workbenches; multi-layer grid air heating furnaces; multi-layer hydraulic presses; brake knives, scissors, etc.

After placing the phone paper on the sticker, develop the production process and stick the mica sheet with 1/3 edge grinding method. Use a brush and glue to apply each layer evenly to the mica sheet, then apply the second layer.

Film, mica board wholesale, brush glue, until pasted to the specified number of layers and thickness. The oven bakes on the grill in the oven. The oven temperature is (130 ± 5) degrees Celsius, and the time is 5-10 minutes. The oven can bake without sliding the bed cloth.

Types of plastic mica boards

The mica flakes with high plastic content account for 15%~25% of the product quality. Its different products are 5230 alkyd plastic mica board and 5231 lac plastic mica board. It is suitable for producing insulating parts with messy shapes or many recommended uses. 5250 is generally used as a high temperature insulator. The glue content of plastic mica boards with a small amount of glue is 8% to 15% of the quality of different products. Its products include 5235 alkyd plastic mica board and 5236 lac plastic mica board, which are suitable for making insulating parts with higher temperature rise (such as traction motors and crane motors) or faster insulating parts.

Planning requirements and guidelines for plastic mica sheets Epoxy plastic high temperature mica sheets are hard at a certain heating temperature. Various shapes of insulating parts can be made. The binder content of epoxy plastic high temperature mica can be divided into 15%-25% and 8%-15%. The processing thickness specification is higher than 0.4 ram, and the thin patch is handmade.